unity8-dash crashed with SIGSEGV in QOpenGLContext::shareGroup()

[krishnan sampath]

the unity8 dash crashed on closing it. now unable to access apps scope. installed on desktop

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity8 8.11+16.04.20160129-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Tue Feb 2 23:22:36 2016
ExecutablePath: /usr/bin/unity8-dash
InstallationDate: Installed on 2015-12-26 (38 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151209)
ProcCmdline: unity8-dash --desktop_file_hint=/usr/share/applications/unity8-dash.desktop
SegvAnalysis:
 Segfault happened at: 0x7febf0037370 <_ZNK14QOpenGLContext10shareGroupEv>: mov 0x8(%rdi),%rax
 PC (0x7febf0037370) ok
 source "0x8(%rdi)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity8
StacktraceTop:
 QOpenGLContext::shareGroup() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
Title: unity8-dash crashed with SIGSEGV in QOpenGLContext::shareGroup()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 QOpenGLContext::shareGroup() const () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 qt_gl_functions(QOpenGLContext*) [clone .constprop.29] () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 void (anonymous namespace)::Resolver<QOpenGLFunctionsPrivate, void (*)(int, unsigned int const*), 3, void>::operator()<int, unsigned int const*>(int, unsigned int const*) () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 qopenglfResolveDeleteRenderbuffers(int, unsigned int const*) () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
 QSGDefaultDepthStencilBuffer::free() () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.